I have recently become fascinated by monkeysee.com, which was originally mentioned in the Pizzeria Paradiso thread, and it has provided me with some great ideas for cooking and also a bolstering of my techniques. The food + drink section is surprisingly DC-centric and features truly excellent, multi-part lessons from PP's Ruth Gresser, Hook's Barton Seaver, and others. The videos are really well produced and the experts able to communicate ideas and lessons exceedingly well. I applied Seaver's tips on how to prepare rockfish to a tilefish I purchased from BlackSalt this weekend and it was one of the best tasting pieces of fish I have ever had.
Everyone should check it out if they need a refresher on technique or just want to waste time at work.